f0 = load('lambda_0/Frames since reset.txt');
f1 = load('lambda_0_1/Frames since reset.txt');
f2 = load('lambda_0_2/Frames since reset.txt');
f5 = load('lambda_0_5/Frames since reset.txt');
f9 = load('lambda_0_9/Frames since reset.txt');
r = load('random/Frames since reset.txt');
semilogy([f0 f5 f9 r], 'o', 'LineWidth', 2);
legend('lambda = 0', 'lambda = 0.5', 'lambda = 0.9', 'Random player');
xlabel('Episode number');
ylabel('Frames per episode');